Integrated Engineering 3" Catted Down Pipe - Audi A4 B9/A5 F5 (2.0 TFSI) Audi A4 B9/A5 F5 (2.0 TFSI)

Say it loudly -Aggressive, yet refined exhaust note
DroneTrap Technology -Proprietary no-drone resonator

Aggressive look -90mm slash-cut quad tips

High flow design -Dual 2.5" piping for any power output

Easy Install -No cutting, no welding, no hassle

50 states legal -No check engine light & emissions compliant